80mm to 120mm Fan Mount Adaptor for SAMA IM01

thingiverse

Have seen one such adapter on Thingiverse, but I find the screws (at least the stock ones that comes with the SAMA IM01 case) sticking out too long and the fan blades can scratch the tip of them, although the designer seems to have thickened part of the design to mitigate the problem. I also find the holes to be not so accurately positioned. So instead of remixing it to be even thicker, I decided to make my own and use spacers to adjust how far the screws get into the fan. This saves the space inside of the case and looks a lot neater. I make the adapter to be 3mm but I guess you can take 1 or even 2mm (sacrificing the counterbore for screws of the 120mm fan) further from it if needed. For the spacers, 3 1mm ones are sufficient for my use case. You will not want to replace them with a single 3mm "tube" because the fan screws are likely self-tapping, so they will likely carve into its wall.